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Pyrofrac 4205

OxideAnalysisFormula
K2O0.20%0.018
Na2O0.20%0.027
TiO20.40%0.043
Al2O312.00%1.000
SiO282.80%11.710
Fe2O31.00%0.053
SO43.00
H2O3.40
Oxide Weight821.10
Formula Weight877.24
If this formula is not unified correctly please contact us.
DENS - Density (Specific Gravity) 2.6
SADR - Sieve Analysis Dry +20 mesh: 5.0 +50 mesh: 90.0 +70 mesh: 5.0
PCE - Pyrometric Cone Equivalent 23
BDLB - Bulk Density lbs/cu. ft. (Packed) 105

Used in structural clay coatings, refractory formulations, whiteware ceramics, art pottery to
increase refractoriness, reduce shrinkage, and widen firing range.
This material is made by crushing & screening of selectively mined andalusite/pyrophyllite/sericite ores
with heavy media separation.


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By Tony Hansen

XML for Import into INSIGHT

<?xml version="1.0" encoding="UTF-8"?> <material name="Pyrofrac 4205" descrip="" searchkey="" loi="0.00" casnumber="12269-78-2"> <oxides> <oxide symbol="K2O" name="Potassium Oxide" status="" percent="0.200" tolerance=""/> <oxide symbol="Na2O" name="Sodium Oxide, Soda" status="" percent="0.200" tolerance=""/> <oxide symbol="TiO2" name="Titanium Dioxide, Titania" status="" percent="0.400" tolerance=""/> <oxide symbol="Al2O3" name="Aluminum Oxide, Alumina" status="U" percent="12.000" tolerance=""/> <oxide symbol="SiO2" name="Silicon Dioxide, Silica" status="" percent="82.800" tolerance=""/> <oxide symbol="Fe2O3" name="Iron Oxide, Ferric Oxide" status="" percent="1.000" tolerance=""/> </oxides> <volatiles> <volatile symbol="SO4" name="Sulfate" percent="3.000" tolerance=""/> <volatile symbol="H2O" name="Water" percent="3.400" tolerance=""/> </volatiles> </material>


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